package com.xiangge.zuoye;

public class Demo3 {
    public static void main(String[] args) {
        for (int i = 0; i <= 5; i++) {
            for (int i1 = 0; i1 < i; i1++) {
                System.out.print("@");
            }
            System.out.println();
        }
    }
}
